﻿// The Nova Project by Ken Beckett.
// Copyright (C) 2007-2012 Inevitable Software, all rights reserved.
// Released under the Common Development and Distribution License, CDDL-1.0: http://opensource.org/licenses/cddl1.php

using System.Collections.Generic;
using System.Windows.Media;

using Nova.CodeDOM;

namespace Nova.UI
{
    /// <summary>
    /// The view model for a <see cref="CodeDOM.Throw"/>.
    /// </summary>
    public class ThrowVM : StatementVM
    {
        #region /* STATICS */

        internal static void AddViewModelMapping()
        {
            CreateViewModel.Add(typeof(Throw),
                delegate(CodeObject codeObject, bool isDescription, Dictionary<CodeObject, CodeObjectVM> dictionary) { return new ThrowVM((Throw)codeObject, dictionary); });
        }

        #endregion

        #region /* FIELDS */

        protected ExpressionVM _expressionVM;

        #endregion

        #region /* CONSTRUCTORS */

        /// <summary>
        /// Create a view model instance for the specified <see cref="CodeDOM.Throw"/>.
        /// </summary>
        public ThrowVM(Throw @throw, Dictionary<CodeObject, CodeObjectVM> dictionary)
            : base(@throw, dictionary)
        {
            _expressionVM = (ExpressionVM)CreateVM(@throw.Expression, false, dictionary);
        }

        #endregion

        #region /* PROPERTIES */

        /// <summary>
        /// The underlying <see cref="CodeDOM.Throw"/> model.
        /// </summary>
        public Throw Throw
        {
            get { return (Throw)CodeObject; }
        }

        /// <summary>
        /// The optional exception <see cref="ExpressionVM"/>.
        /// </summary>
        public ExpressionVM Expression
        {
            get { return _expressionVM; }
        }

        #endregion

        #region /* METHODS */

        #endregion

        #region /* RENDERING */

        public override Brush BorderBrush
        {
            get { return DarkPink; }
        }

        public override Brush BackgroundBrush
        {
            get { return Brushes.Pink; }
        }

        protected override void RenderArgument(CodeRenderer renderer, RenderFlags flags)
        {
            if (_expressionVM != null)
                _expressionVM.Render(renderer, flags);
        }

        public override void RenderVisible(CodeRenderer renderer, RenderFlags flags)
        {
            base.RenderVisible(renderer, flags);
            if (_expressionVM != null)
                _expressionVM.RenderVisible(renderer, flags);
        }

        public override void UnRender()
        {
            if (_expressionVM != null)
                _expressionVM.UnRender();
            base.UnRender();
        }

        #endregion
    }
}
